Garbage truck



5 Sheets-Sheet l INVENTOR.

ATTORNEY.

l\ vuw wwnwoooooooo GARBAGE TRUCK Filed Aug. 2, 1937 J. J. PETERSON Sept. 13, 1938.

Sept. 13, 1938. J. J. PETERSON GARBAGE TRUC K Filed Aug. 2, 1937 5 Sheets-Sheet 3 BY umfimm 1938- J. J. PETERSON 2,130,099

GARBAGE TRUCK Filed Aug. 2, 1937 5 Sheets-Sheet 4 v I I IN VENTOR.

a John J: {arson ATTORNEY.

Sept. 13, 1938. J. J. PETERSON 2,130,099

GARBAGE TRUCK Filed Aug. 2, 1957 5 Sheets-Sheet s ATTORNEY.

Patented Sept. 13, 1938 1 UNITED STATES PATENT OFFICE.

6 Claims.

This invention relates to improvements in closed trucks of the type especially adapted for collecting and transporting garbage, and is related to the invention shown in my allowed application Serial No. 507,539 filed Dec. 26, 1930, now forfeited.

An object is to provide a means whereby the odors may be confined and the contents be re-- moved at will in a minimum of time.

A further object is to provide a means whereby the loading and unloading may be operated and controlled from the power plant of the truck. I

Other objects are the provision of means whereby the interior of the truck maybe heated to further facilitate the removal of its contents and to provide a system by which the interior may be flushed out and thoroughly cleansed.

These and other objects may be noted from the following specification and its accompanying illustrations, in which;

Fig. 1 is a side elevation, partly in section, of the garbage truck.

Fig. 2 is an enlarged partial side elevation and section of the forward end of the truck adjacent the cab.

Fig. 3 is a rear elevation of Fig. 1.

Fig. 4 is a section taken on line 4-4 of Fig. 1.

Fig. 5 is an enlarged fragmentary rear end portion of the chute and double worm.

Fig. 6 is a section taken on line 6-6 of Fig. 1 illustrating the pivoting of the distributing trough.

Fig. 7 is an enlarged view similar to Fig. 4.

Fig. 8 is a side elevation of the rotating worm cover.

Fig. 9 is a section on line 9-9 of Fig. 2, with wall 2| cut away, illustrating the method of operating the distributing trough and the loading door.

Fig. 10 illustrates the action of the operating jaw and foot pedal in opening and closing the loading door.

Fig. 11 is a front view of the foot pedal, operating jaw and ratchet shown in Figs. 9 and 10.

Fig. 12 is a fragmentary side elevation of the rear end of the worm cover in closed position.

Fig. 13 is a similar view of the front end in open position.

Fig. 14 is an end view of Fig. 12 showing the method of operating the worm cover.

Again referring tothe illustrations, the frame It has mounted thereon a body II, preferably cylindrical as shown by Figs. 3, 4, 6 and 7 specifically. The top surface of the body II has a pair of ports I2 and I3 therein with glass discs I4 and I5 mounted in the top surface of the covers I6 and I! of said ports respectively; the covers I 6 and I1 being hinged at I8 and I9 to the port walls for easy access within the truck body II.

Within the body I I are a pair of inner walls and 2| which :ge adjacent each side of the port I3 and form a mpartment 22 wherein is mounted the mechanism for operating the various movable parts and which will hereinafter be referred to.

A distributing trough 23 is secured to a rotating shaft 24 mounted in bearings 25, 26, 21 and 28 secured to and through the rear wall I la, inner walls 20 and 2| and front wall IIb respectively and also Within the bearing 29 of the strap 30 secured to the top inner wall of the cylindrical body II The inner walls 20 and 2| each have an opening 20a and 2Ia respectively directly below and adjacent the rotating shaft 24, the front wall Ilb also having an opening IIc which registers with the openings 20a. and 2Ia of the inner walls 20 and 2|.

Mounted within the body II, and resting upon its inner bottom surface, is a circular channel 3| having angularly disposed walls 32 and 33, said sides resting against the inner walls of the cylindrical body II between the rear end wall Na and the inner wall 20.

Within the circular channel 3| is mounted a double spiral conveyor or worm 34 having a hollow shaft 35 through the center thereof, said shaft having a plurality of perforations 36 therethrough. Rods 3'! and 38 are mounted through apertures 39 and 40 in the top and bottom fins respectively of the spiral conveyor 34 adjacent the apex of the fins, each aperture 39 and 40 registering with the others of like characters of reference. The last two fins 34a of the conveyor 34 are heavier than the others of the fins.

The opposed ends of rods 31 and 38 are fitted within collars 4| and 42 mounted rigidly on the opposed ends of the hollow shaft 35 of the spiral conveyor 34, said rods having no purpose other than to strengthen the spiral conveyor 34 and prevent buckling under pressure.

The extreme rear end 35a of the hollow shaft 35 is curved slightly and has angularly disposed perforations 43 and 44 therein as shown in Fig. 5.

A distributing chute 45 is flanged at 46 and 41 and secured to the rear end wall IIa of the body II by bolts 48 through said flanges, the openings 48 and 49 in the chute registering with the'openings 50 and 5| in the rear wall I Ia of the body I I.

A discharge door 52 is pivotally secured by its flanged sides 53 and 54 to a cam shaft 55 rotatably mounted through an elongated aperture 56 in a bracket 61 which is an integral part of the rear wall Ila, said cam shaft being operated by handles 66 and 69 projecting angularly therefrom and extending rearwardly on each side of the discharge door 62.

A conveyor cover 66 has an elongated cutout center portion 6i, and its opposed ends 62 and 69 have a series of apertures 64 and 66 respectively therethrough around the outer periphery thereof, the apertures 64 in the outer end 62 engaging a gear 66 rotatably mounted on a pin '61 secured through the flange 41 of the distributlngchute 46. A bushing 66, mounted within the shouldered portion 41a of the flange 41, serves as a bearing wherein rotates a flanged portion 69 of the conveyor cover 66 adjacent the outer apertured end 62'thereof.

The opposite or front end 69 of the conveyor cover 66 engages a sprocket 16'mounted on a shaft 1I and driven by means of a chain 12 from a' sprocket 19 which'in turn is mounted on a shaft 14 which is operated bya lever 16 within the cab 16.' The shaft H is secured in position by means of brackets 11 and 16 mounted on the wall of the cylindrical body II.

A bearing bracket .19 mounted upon the inner surface of the rear wall Ila, and secured thereto by bolts 66, partially encircles the conveyor cover 66, a bushing bearing 9i being contained therein as shown specifically in Fig. 5.

A discharge valve 62 is secured through the lower wall of the cylindrical chute 46 adjacent the discharge door 62. l

The front end of the hollow shaft 96 is mounted within a split bearing 69 in a gear 94, the power take off being through the transmission by means of the gears 64 and 96 on the shaft 96 and pinion gears 66 and 91 on shaft 66 and operated within the cab 16.

A cap 69 on the end of the shaft 96, may be removed when a small door 96, in the side of the cab 16, is opened and a hose may be attached thereto for forcing water through the hollow shaft 96.

A loading door 9I on the right side of the body I I is mounted on a cam shaft 92 said shaft being mounted through collars 99 and 94 to which may be secured counter weights 96 and 96, as shown in Figs. 1, 4, and 7 the outer end of the shaft 92 being retained within a bearing 91 mounted within the chamber 22 on the inner wall 26. The lifting up of the door 9| by means of its hand holds 9 Ia, causes the counter weights 96 and 96 to hold the door in an open position, until the action of pulling down on the hand holds, draw it closed again. A modified form illustrated in Figs. 2, 9, 10 and 11 shows the cam shaft operated by a foot lever 96 pivotally mounted on a step 99 beside the cab 16, said foot lever being attached to an operating jaw I66 by a pivot pin I6I, said jaw in turn contacting a ratchet I62 on a shaft I69; a sprocket I64, mounted on the shaft I69 forward of the ratchet I62, operates a chain I66 which in turn motivates a shaft I66 by means of a sprocket I61; a pinion gear I66, mounted on a shaft I66 rearward and adjacent to the sprocket I61, meshes with a gear I69 on the shaft 92 causing the door 9i to be rotated upward as shown in Fig. 9; a tension spring H6 is secured to the op- 6 position, a rod I I I attached pivotally to the operating jaw I66, is drawn down and'thrust into the aperture H2 in the side of the foot lever 66; the lever is pressed down and the jaw I66 releases the ratchet I62; the weight of the door causes it to reverse the action of the sprockets, chains and gears and the door drops to its closed position as illustrated by Fig. 10.

A hot air system which heats the contents of the truck is obtained by attaching conduit II9 .to the exhaust pipe m, said conduit m being carried up from the rear of the trucid and penetrating the body II to position A" within the chamber II6, formed within the body I I between the angularly disposed wall 92 of the circular channel 9I and the inner surface of the body II and is then carried forward again within this chamber to the inner wall 26, through this wall into chamber 22, through the inner wall 2|, to

position "3 and upward following the contour of the body II to position 0" and down on the opposite side ,of the body to position D" then rearward again through the body to its exhaust outlet 11", Straps II6 under the body II hold the exhaust conduit II9 to the underside of the body below the conveyor 94.- This system keeps the truck co'ntents soft andpliable so that they maybe readily discharged.

After the garbage is loaded through the loading door 9I, the'dooris dropped to its closed position, the lower end thrusting the waste II6 into the spiral conveyor 94, a wall II1, withinthe chamber 22 above the said conveyor, preventing the said waste from entering the opposite side of the chamber.

The waste entering the conveyor 94 is carried back the length of the conveyor and thrust upward through the distributing chute 46, the conveyor cover 66 as shown in Fig. 12 confining the waste material II6 within the conveyor housing thus formed, the waste entering the main'body II, drops onto the distributing trough 29, theshaft 24 to which the trough is secured is rocked left or right by a ratchet handle I I9, a. reversing manner as to form a tight seal when the doors are in a closed position with the rubber gaskets I26 and HI between the doors 62 and 9i and the distributing chute 46 and the body II respectively. A

When the material is all discharged a hose may be connected to the end 960 of the shaft 96 and water forced through the perforations 96 in said shaft, and through the angularly disposed perforations 49and 44 in the end of the shaft 96 cleaning the conveyor and chutethoroughly, the trough and inside of the body may be cleaned through the port I2.

A valve I29 on the exhaust line II4, rearward of and adjacent to the upward turned conduit II9 shuts off the system at will, and causes the hot air from the exhaust to go straight through and out of the exhaust terminal 1 Ma of the ex haust line II4.

I claim:

1. A garbage truck. comprising a body having a load compartment therein, a screw conveyor 15 a 

